Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
mărīnus, a, um, adj. [mare], of or belonging to the sea, sea-, marine (class.): marini terrenique umores, Cic. N. D. 2, 16, 43: aestus, id. Div. 2, 14, 34: fremitus, Verg. G. 2, 160: naves, sea-ships, Dig. 50, 5, 3: mustela, Enn. ap. App. Mag. p. 299 (Heduphag. p. 166 Vahl.): Nympha, Cat. 64, 16: Venus, sea-born, Hor. C. 3, 26, 5: ros, rosemary, id. ib. 3, 23, 15: vituli, sea-calves, Juv. 3, 238: morsus, of sea-water, Plin. 36, 26, 65, § 191.
Neutr. absol.: terrenum differt a marino, i. e. that which is produced by the sea, Quint. 5, 10, 61.